Asked on Feb 24, 2021

How do i make sure i dont have too many soffit vents?

Becky at Flipping the FlipNick CaseyChas' Crazy Creations


I was looking to find a spot to vent a bathroom fan as the hose was placed in the gable by the previous owner. I was thinking of going through the soffit as I don't want to put a hole in the roof and we get ALOT of snow. After looking at the soffit of my home I saw that the entire soffit was vented. There are no solid coverings a. All vents the full length of the home on both sides! Is this ok? Should I change it?


Sorry Didnt mean to Vent.

12 answers
  • Mogie
    on Feb 25, 2021

    How Many Soffit Vents Should You Have?

  • Betsy
    on Feb 25, 2021

    Hi Nick: First of all, let me say that I loved the pun :) There should not be a problem with venting your fan to the outside. Are you talking about the soffit vents that are under the roof under hang with the little holes, or the ones that are on the side of the house and sort of circular or oval and about a foot in diameter? As long as the fan is venting to the outside, there should be no problem with mold, wood rot or squirrels, rats or other critters seeking warmth during the winter. So, if you can make it go outside, that would be the way to go.

    Hope you found this helpful.

  • Dee
    on Feb 26, 2021

    A bathroom vent should be vented to the outside not into your attic. There are covers that go over the pipes.

  • Seth
    on Feb 26, 2021


    Venting through the roof with rigid ductwork is the proper way to vent your bathroom fan. Current residential building code does not allow new construction to vent through the soffit. The reason is the warm moist air you are venting out of the bathroom will be drawn right back into your attic by the very soffit vent you want to vent through. The reason your soffit vent is continuous is to provide air flow over the underside of your roof sheathing and up to your ridge vent.(Do you have styrofoam baffles stapled to the sheathing?) I am assuming you have a ridge vent. That airflow moves moisture out and keeps your attic cold in the winter. The last thing you want to do is introduce warm moist air into a cold attic. I live in the North East. Lots of snow. That is the way it is done. Rigid ductwork is more efficient that the flexible type.

  • Annie
    on Feb 26, 2021

    The more venting the better. You need free air movement in the attic,,

  • Jeremy Hoffpauir
    Jeremy Hoffpauir
    on Feb 28, 2021

    This is the proper way to vent it.

  • Deb K
    Deb K
    on Mar 1, 2021

    Hi Nick, keep is as it is, you have no issues, so status quo

    Attic ventilation serves a number of purposes. It reduces summer heat buildup, prolonging the life of roofing and reduces air conditioner loads. After air sealing, attic ventilation is your second line of defence against the water vapour that may have found its way into the attic.

  • Johnavallance82
    on Mar 3, 2021

    Hello Nick,

    You could go through the wall or window instead!

  • Nick Casey
    Nick Casey
    on Mar 3, 2021

    I am now thinking I may go thru the gable. that way I don't have to worry about it kicking back into the soffit itself.

  • If you’re unsure about any of this, you should really discuss it with your local building department. The last thing you want to do is damage your home or cause any future problems in selling it if this is done improperly.

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